/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8                               :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
│                                                                              │
│ Permission to use, copy, modify, and/or distribute this software for         │
│ any purpose with or without fee is hereby granted, provided that the         │
│ above copyright notice and this permission notice appear in all copies.      │
│                                                                              │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
│ PERFORMANCE OF THIS SOFTWARE.                                                │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/popcnt.h"
#include "libc/calls/calls.h"
#include "libc/testlib/ezbench.h"
#include "libc/testlib/hyperion.h"
#include "libc/testlib/testlib.h"

void SetUpOnce(void) {
  ASSERT_SYS(0, 0, pledge("stdio rpath", 0));
}

TEST(popcnt, test) {
  EXPECT_EQ(32, popcnt(0x5555555555555555));
  EXPECT_EQ(32, popcnt(__veil("r", 0x5555555555555555)));
  EXPECT_EQ(32, (popcnt)(__veil("r", 0x5555555555555555)));
}

BENCH(popcnt, bench) {
  EZBENCH2("popcnt", donothing,
           __expropriate(popcnt(__veil("r", 0x5555555555555555))));
  EZBENCH2("(popcnt)", donothing,
           __expropriate((popcnt)(__veil("r", 0x5555555555555555))));
  EZBENCH_N("_countbits", kHyperionSize, _countbits(kHyperion, kHyperionSize));
}
